A comprehensive study of a similarity criterion in cardiac computerized tomography images enhancement/Estudio de un criterio de similaridad en la mejora de imagenes cardiacas de tomograffa computarizada

This research focuses on the study of a particular filter based on a similarity criterion that has been applied to improve the information contained in images acquired using different cardiac imaging modalities. The primary attention of this study is to examine which component of the similarity crit...

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Veröffentlicht in:Revista Facultad de Ingeniería 2022-01 (102), p.51
Hauptverfasser: Valero, Antonio Jose Bravo, Vera, Miguel Angel, Huerfano, Yoleidy, Hidalgo, Yeison Fabian Manrique
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Sprache:spa
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Zusammenfassung:This research focuses on the study of a particular filter based on a similarity criterion that has been applied to improve the information contained in images acquired using different cardiac imaging modalities. The primary attention of this study is to examine which component of the similarity criterion generates more relevant information useful to increase the medical image quality. In this sense, four case studies are established, first a complete formulation of the similarity criterion is considered, and then three additional cases, representing each component of the criterion; such cases are referred to as full, main, residual (1), and residual (2), respectively. A score function is used for quantifying and then assessing the impact of each component of the similarity criterion. Such measure is a relation between some full-reference and blind-reference image enhancement measures. A computer generated phantom and a representative clinical dataset (1,270 three-dimensional images from 126 patients) are used in a thorough evaluation of the similarity criterion. In general terms of performance of the image enhancement technique, the results of the study reveal that the component residual (1) outperforms than the other two components of similarity criterion or its complete formulation. RESUMEN: Este trabajo se focaliza en el estudio de un filtro particular basado en un criterio de similaridad que se ha aplicado para realzar la informacion contenida en las imagenes adquiridas bajo diferentes modalidades de imagenologia cardiaca. La atencion principal de este estudio es examinar que componente del criterio de similaridad genera informacion mas relevante, util para para aumentar la calidad de la imagen medica. En este sentido, se establecen cuatro estudios de caso, primero se considera una formulacion completa del criterio de similaridad, y luego tres casos adicionales relacionados cada uno con cada componente del criterio, dichos casos se denominan full, main, residual (1), y residual (2), respectivamente. Para el estudio, se considera la utilizacion de una funcion de puntuacion para cuantificary posteriormente evaluar el impacto de cada componente del criterio de similaridad. Dicha medida es una relacion entre algunas medidas de mejora de imagen de referenda completa y otras de referenda ciega. Un phanthom generado por computadora y un conjunto de datos clmicos representatives, 1.270 imagenes tridimensionales de 126 pacientes, se utilizan en una evaluacion e
ISSN:0120-6230
DOI:10.17533/udea.redin.20200799